Scaffold device

Abstract

A scaffold device comprising a wheeled frame means including a front axle assembly and a rear axle assembly which are pivotally interconnected about a horizontal axis whereby either of the axle assemblies may be pivoted or rotated relative to the other. A first post is pivotally connected at its lower end to the front axle assembly and extends upwardly therefrom. A telescoping support is pivotally connected at its lower end to the front axle assembly and extends upwardly to a pivotal connection with the first post to permit the first post to be vertically positioned regardless of the attitude of the front axle assembly. A second post is pivotally secured at its lower end to the rear axle assembly and extends upwardly therefrom. A telescoping support is pivotally connected at its lower end to the rear axle assembly and is pivotally connected at its upper end to the second post adjacent the upper end thereof to permit the second post to be vertically positioned regardless of the attitude of the rear axle assembly. A platform is slidably mounted on the first and second posts and extends therebetween. The ends of the platform are raised and lowered by means of a winch mounted on each of the first and second posts. Braces interconnect the posts to prevent their separation.

I claim: 
     
       1. A scaffold device, comprising, a wheeled frame means comprising a front axle assembly and a rear axle assembly, said front and rear axle assemblies being pivotally connected together about a horizontal axis whereby one of said axle assemblies may be pivoted relative to the other,   a first support having upper and lower ends, said first support being selectively pivotally secured at its lower end to said front axle assembly and extending upwardly therefrom,   a second support having upper and lower ends, said second support being selectively pivotally secured at its lower end to said rear axle assembly and extending upwardly therefrom,   a platform vertically movably mounted on said first and second supports and extending therebetween,   and means for raising and lowering said platform relative to said first and second supports.   
     
     
       2. The device of claim 1 wherein said means for raising and lowering said platform comprises a winch means. 
     
     
       3. The device of claim 2 wherein a winch means is secured to each of said first and second supports, each of said winch means being operatively connected to one end of said platform. 
     
     
       4. The device of claim 1 wherein a first length adjustable member is pivotally secured at one end to said front axle assembly and is pivotally secured at its other end to said first support, and a second length adjustable member pivotally secured at one end to said rear axle assembly and is pivotally secured at its other end to said second support. 
     
     
       5. The device of claim 4 wherein each of said length adjustable members comprises an inner tube member having an outer tube member slidably received thereon, and locking means for locking said inner and outer tube members together to prevent relative movement therebetween. 
     
     
       6. The device of claim 5 wherein said locking means comprises a set screw means threadably extending through said outer tube member and into engagement with said inner tube member. 
     
     
       7. The device of claim 5 wherein a safety chain extends between said outer tube member and the associated axle assembly. 
     
     
       8. The device of claim 5 wherein said inner tube member has a plurality of spaced-apart openings formed therein for receiving a pin means positioned below said outer tube member. 
     
     
       9. The device of claim 1 wherein each of said axle assemblies have inner and outer wheel members with respect to the building structure adjacent thereto, said first and second supports being positioned adjacent said inner wheel members, said platform extending from said first and second supports whereby a work area is provided between the building structure and the inner wheel members below said platform.